It mailed out to the buyer on the 15h of Jan from Berkeley, CA to Hong Kong and there has been no word of it since. The buyer has filed a dispute and escalated it to a Paypal claim (?). This is my first ever dispute so I'm a little confused. The post office gave me (my sister actually, as she mailed it for me) a customs control number for tracking purposes instead of a real tracking number so they are about as lost as I am. The package was insured but 1) how does USPS determine that the package is lost if they can't track it? and 2) how can I be sure that USPS will honor my claim? I do have a copy of the auction and the paypal invoice I sent the buyer. I've sent the buyer a couple of emails asking her to at least wait until this weekend but this is all stressing me out and I think I might as well get it over with and just issue her refund. Is it too soon? She says she will mail the YSL wallet back to me if it indeed shows up on her doorstep, but I of course don't know this person and how can I be sure she'll actually do that? I've used USPS for years and this is the first time I am having a real problem with them. Any advice would be most appreciated!